EP 1365627 A1 20031126 - Multifunction acoustic device with direct current motor
Title (en)
Multifunction acoustic device with direct current motor
Title (de)
Multifunktionelle akustische Vorrichtung mit Gleichstrommotor
Title (fr)
Dispositif acoustique multifonction à moteur à courant continu
Publication
Application
Priority
KR 20020015409 U 20020521
Abstract (en)
Disclosed is a speaker with a built-in direct current motor for selectively generating sound and vibration, which includes: a speaker part, a direct current motor part, and a frame (160). The speaker part has a yoke (150) having a hole formed at the center thereof, a first ring-shaped magnet (140) mounted on the top surface of the peripheral portion of the yoke, a ring-shaped upper plate (130) mounted on the top surface of the first magnet, a vibration plate (110) fixedly mounted to the top surface of the upper plate at the circumferential end thereof, and a generally cylindrical voice coil (120) attached to the bottom surface of the vibration plate. The direct current motor part has a lower plate (240) coupled to the bottom surface of the peripheral portion of the yoke, a flexible printed circuit board disposed on the lower plate, a second ring-shaped magnet (230) mounted on the top surface of the lower plate, a rotary shaft (210) positioned one end thereof on the hole of the yoke and positioned the other end thereof on the hole of the center of the flexible printed circuit board, and an eccentric rotor (220) rotatably mounted on the rotary shaft. According to the present invention, sound or/and vibration is/are selectively outputted from portable equipment such as a cellular phone requiring a vibration function. <IMAGE>
IPC 1-7
IPC 8 full level
H04R 9/00 (2006.01); B06B 1/04 (2006.01); H02K 7/06 (2006.01); H04R 9/02 (2006.01); H04R 9/10 (2006.01)
CPC (source: EP US)
B06B 1/045 (2013.01 - EP US); H02K 7/063 (2013.01 - EP US); H04R 9/10 (2013.01 - EP US); H04R 2400/03 (2013.01 - EP US)
Citation (search report)
- [XA] EP 1191809 A2 20020327 - CITIZEN ELECTRONICS [JP]
- [PX] EP 1229762 A2 20020807 - CITIZEN ELECTRONICS [JP]
Designated contracting state (EPC)
DE FI FR GB SE
DOCDB simple family (publication)
EP 1365627 A1 20031126; EP 1365627 B1 20060201; CN 100399843 C 20080702; CN 1459991 A 20031203; JP 2003348688 A 20031205; JP 4017962 B2 20071205; KR 200287504 Y1 20020905; TW 564656 B 20031201; US 2003219140 A1 20031127; US 6665416 B1 20031216
DOCDB simple family (application)
EP 02024542 A 20021031; CN 02150298 A 20021111; JP 2002326471 A 20021111; KR 20020015409 U 20020521; TW 91123903 A 20021017; US 29041302 A 20021106